@for $i from 1 to 13{
    .col-#{$i}{
        width: 100%/12*$i;

    }
}
.col-20{
    width: 20%;
}
[class^='col']{
    float: left;
}
*{
    margin: 0;
    padding: 0;
}
body{
    font-size: 12px;
    color: #b2b2b2;
    background: #ececec;
}
div{
    box-sizing: border-box; 
}
.container,.main{
    width: 1200px;
    margin-left: auto;
    margin-right: auto;
}
.center{
    margin-left: auto;
    margin-right: auto;
}
.ta-c{
    text-align: center;
}
a{
    text-decoration: none;
    color: #cccccc;
    &:hover{
        color: #678ee7;
    }
}
ul,li{
    list-style: none;
}
button{
    // box-direction: none;
    border-style: none;
}
.row::after{
    display: block;
    content: "";
    clear: both;
}
.border-right::after{
    content: "";
    display: block;
    position: absolute;
    top: 0px;
    right: 0px;
    width: 1px;
    height: 100%;
    border-right: 1px solid #e6e6e6;
}
.b-radius{
    border-radius: 5px;
}
.border-bottom{
    border-bottom: 1px solid #e6e6e6;
}
.box-shadow:hover{
    box-shadow: 0px 0px 15px 0px #e6e6e6 inset; 
}
.float-l{
    float: left;
}
.pr{
    position: relative;
}
.pa{
    position: absolute;
}
.none{
    display: none;
}
.flex{
    display: flex;
}
.block{
    display: block;
}
.picture{
    vertical-align: bottom;
}
.mt-bug::before{
    content: "";
    display: table;
}

